8s^2+3s-2=0

Simple and best practice solution for 8s^2+3s-2=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 8s^2+3s-2=0 equation:


Simplifying
8s2 + 3s + -2 = 0

Reorder the terms:
-2 + 3s + 8s2 = 0

Solving
-2 + 3s + 8s2 = 0

Solving for variable 's'.

Begin completing the square.  Divide all terms by
8 the coefficient of the squared term: 

Divide each side by '8'.
-0.25 + 0.375s + s2 = 0

Move the constant term to the right:

Add '0.25' to each side of the equation.
-0.25 + 0.375s + 0.25 + s2 = 0 + 0.25

Reorder the terms:
-0.25 + 0.25 + 0.375s + s2 = 0 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.00 + 0.375s + s2 = 0 + 0.25
0.375s + s2 = 0 + 0.25

Combine like terms: 0 + 0.25 = 0.25
0.375s + s2 = 0.25

The s term is 0.375s.  Take half its coefficient (0.1875).
Square it (0.03515625) and add it to both sides.

Add '0.03515625' to each side of the equation.
0.375s + 0.03515625 + s2 = 0.25 + 0.03515625

Reorder the terms:
0.03515625 + 0.375s + s2 = 0.25 + 0.03515625

Combine like terms: 0.25 + 0.03515625 = 0.28515625
0.03515625 + 0.375s + s2 = 0.28515625

Factor a perfect square on the left side:
(s + 0.1875)(s + 0.1875) = 0.28515625

Calculate the square root of the right side: 0.534000234

Break this problem into two subproblems by setting 
(s + 0.1875) equal to 0.534000234 and -0.534000234.

Subproblem 1

s + 0.1875 = 0.534000234 Simplifying s + 0.1875 = 0.534000234 Reorder the terms: 0.1875 + s = 0.534000234 Solving 0.1875 + s = 0.534000234 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-0.1875' to each side of the equation. 0.1875 + -0.1875 + s = 0.534000234 + -0.1875 Combine like terms: 0.1875 + -0.1875 = 0.0000 0.0000 + s = 0.534000234 + -0.1875 s = 0.534000234 + -0.1875 Combine like terms: 0.534000234 + -0.1875 = 0.346500234 s = 0.346500234 Simplifying s = 0.346500234

Subproblem 2

s + 0.1875 = -0.534000234 Simplifying s + 0.1875 = -0.534000234 Reorder the terms: 0.1875 + s = -0.534000234 Solving 0.1875 + s = -0.534000234 Solving for variable 's'. Move all terms containing s to the left, all other terms to the right. Add '-0.1875' to each side of the equation. 0.1875 + -0.1875 + s = -0.534000234 + -0.1875 Combine like terms: 0.1875 + -0.1875 = 0.0000 0.0000 + s = -0.534000234 + -0.1875 s = -0.534000234 + -0.1875 Combine like terms: -0.534000234 + -0.1875 = -0.721500234 s = -0.721500234 Simplifying s = -0.721500234

Solution

The solution to the problem is based on the solutions from the subproblems. s = {0.346500234, -0.721500234}

See similar equations:

| 16n+12+13n-2=31 | | -5(x+9)=20 | | 7n^2-5n-4=0 | | -16m^2+24m+16=0 | | -3f^2-4f+1=0 | | -40=8-8x | | X^2-kx+2k+5= | | 5x+y=45.25 | | 8.7x+27.62=11.3x+27.44 | | 4x+7(-2x+4)=-82 | | 20k+7-5+18=-5 | | 4x-(-3x+2)=7-2 | | X^2-kx+2k+5=0 | | 8q^3+6q^2-9q=0 | | t/1=15 | | 3p-1+9p+9= | | a/11=13 | | 3x+7y-5x-4y= | | Y(-7)=-12 | | 3r^2-4r=0 | | 99/108 | | 4q-6q= | | 34/85=25/75 | | 34/85 | | 3v-9-6v-3=18 | | -8w+18=-5(w-6) | | 9p-1s+4p-2s= | | 4h^2+6h=0 | | 7/x-2=8 | | 10.5/2500.0=2500.0/x | | x/3-x-1/2=1 | | 5s-2q+1s-7q= |

Equations solver categories